CN201928254U - Automatic wire holder for serial-port link-line decoding-type managed household electronic and electric appliance - Google Patents
Automatic wire holder for serial-port link-line decoding-type managed household electronic and electric appliance Download PDFInfo
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- CN201928254U CN201928254U CN2010205317528U CN201020531752U CN201928254U CN 201928254 U CN201928254 U CN 201928254U CN 2010205317528 U CN2010205317528 U CN 2010205317528U CN 201020531752 U CN201020531752 U CN 201020531752U CN 201928254 U CN201928254 U CN 201928254U
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Abstract
The utility model relates to an automatic wire holder for serial-port link-line decoding-type managed household electronic and electric appliances, belonging to an interface device for a computer and household electric appliances. The automatic wire holder uses the computer as a main machine, is matched with four switching value output sensors, can automatically detect relevant conditions and can automatically run three pairs of electronic and electric appliances. The automatic wire holder comprises an RS232C interface, a universal serial bus (USB) interface, a USB-to-serial-port conversion circuit, four pairs of sensor interface terminals, a decoding, pulse width discrimination and output signal latch circuit, three groups of electronic switching circuits, a regulated power supply circuit and a lightning and surge protection circuit, wherein the pin CD, the pin DSR, the pin CTS and the pin RI of the RS232C interface and the cathode of a power supply respectively form the four pairs of sensor interface terminals through four pull-up resistors, and the pin DTR and the pin RTS of the serial port control the three groups of electronic switching circuits through voltage stabilizing diodes which are used for limiting voltage and the decoding, pulse width discrimination and output signal latch circuit. By using two groups of computer-managed-to-common power supply socket circuits, the device can be used for directly controlling the operation of the household electronic and electric appliances through sensors or can be used as a common power supply wire holder.
Description
Technical field
The utility model belongs to the application electric technology field, particularly relates to a kind of computer of household electrical appliance automation and interface arrangement of domestic electronic and electrical equipment realized.
Background technology
Recently prepare to submit to the utility model patent home electronic appliance automation junction block of computer management " can " of Patent Office of State Intellectual Property Office examination to analyze the product and the technology status that realize domestic electronic and electrical automation operation on the present domestic market, the utility model of its proposition is main frame with the personal computer, can cooperate 4 Sensor of Switch-Output Type, automatically detect the respective conditions of external environment condition according to default plan, automatically move two pairs of domestic electronics or two pairs of electrical equipment, also can cooperate the operation of Sensor of Switch-Output Type control household electrical appliances independently, or be used as common supply socket and use.This utility model uses civil power as its working power, its alternating current electronic switching circuit and light current electronic switching circuit can also be expanded by the mode of parallel connection, but, because the interconnection of shaking hands of the RS232C interface of control electronic apparatus operation has only RTS, the DTR two-way, therefore, the use of the multichannel apparatus that this expansion in parallel brings also remains parallel way, can not control operation independently.
The utility model content
The purpose of this utility model is to provide the home electronic appliance automation junction block of a serial port interconnection decoding type management, it can cooperate 4 Sensor of Switch-Output Type, with the computer is main frame, detects the respective conditions of external environment condition automatically, moves 3 pairs of domestic electronics or electrical equipment automatically; Also can independently use; Comprise: 9 pin RS232C interfaces, USB interface, USB change serial port circuit, 4 pairs of sensor interface terminals, decoding, pulsewidth differentiates and common power socket circuit and supply main and plug thereof are changeed in output signal latch cicuit, 3 groups of electronic switching circuits, voltage-stabilized power supply circuit, anti-lightning strike and surge circuit, the management of 2 sets of computer.
The technical scheme that its technical problem that solves the utility model adopts is:
USB interface is connected to the corresponding signal input part that USB changes the serial port circuit, the corresponding port line parallel of the latter's signal output part and RS232C interface; The first pin CD of RS232C interface, the 6th pin DSR, the 8th pin CTS are connected a pull-up resistor respectively to positive source with nine kinds of needles R1, and this four pin and power cathode have constituted 4 pairs of sensor interface terminals respectively; The 4th pin DTR of RS232C interface, the 7th pin RTS are connected to 2 signal input parts of decoding, pulsewidth discriminating and output signal latch cicuit separately by a light-emitting diode, these 2 signal input parts also connect the negative pole of a pull down resistor and a voltage stabilizing didoe respectively, and the other end of this pull down resistor and the positive pole of voltage stabilizing didoe all are connected to power cathode; Three signal input end that are connected respectively to 3 groups of electronic switching circuits in the output of decoding, pulsewidth discriminating and output signal latch cicuit; The ac input end of voltage-stabilized power supply circuit is received civil power with anti-lightning strike in parallel with the surge circuit by supply main and plug thereof, and the negative pole of voltage-stabilized power supply circuit links to each other with the 5th pin GND of RS232C interface.
Described voltage-stabilized power supply circuit is made up of power transformer, diode bridge rectifier circuit, capacitor filter and circuit of three-terminal voltage-stabilizing integrated 7806, and two outputs of 7806 have constituted the positive source and the power cathode of this device respectively.
Described anti-lightning strike the polyphone by a fuse and a piezo-resistance with the surge circuit formed.
The structure of described 3 groups of electronic switching circuits is identical, comprises separately: No. 1 alternating current electronic switching circuit and 1 road light current electronic switching circuit.
Described alternating current electronic switching circuit comprises: 1 NPN triode, 1 PNP triode, 1 base resistance, 1 base biasing resistor, 1 collector resistance, 1 current limliting collector resistance and a solid-state relay; Wherein, the base stage of one termination NPN triode of base resistance, the other end is as the signal input end of this electronic switching circuit, base biasing resistor is connected in parallel on the emitter junction of PNP triode, the emitter of this PNP triode connects positive source, collector resistance of its base stage series connection is connected to the collector electrode of NPN triode, the emitter of NPN triode is connected to power cathode, current limliting of the collector electrode of PNP triode series connection is connected to the positive pole in the signal input end of solid-state relay with collector resistance, the negative pole in the signal input end of solid-state relay is connected to power cathode; Two outputs of solid-state relay constitute the output of this alternating current electronic switching circuit.
Described light current electronic switching circuit comprises: triode and base resistance, a diode, a light-emitting diode and a direct current relay; Wherein, the base stage of one termination triode of base resistance, the other end is as the signal input end of this electronic switching circuit, the emitter of triode is connected to power cathode, its collector electrode is connected to the negative pole of light-emitting diode, the positive pole of light-emitting diode is connected respectively to an end of the coil of the positive pole of diode and direct current relay, and the other end of the negative pole of diode and the coil of direct current relay all is connected to positive source; Six terminals of two pairs of single-pole double-throw switch (SPDT)s of direct current relay have constituted the output of this light current electronic switching circuit.
The structure that the common power socket circuit is changeed in described 2 sets of computer management is identical, comprises 1 current limliting isolation resistance, 1 switch and an isolation diode separately; Wherein, an end of current limliting isolation resistance connects an end of switch, and its other end is connected to positive source, and the other end of switch connects the positive pole of diode, and draws 1 pairs of posts from the two ends of switch, the sensor terminals when having constituted independent the use; The negative pole of the diode in these two series circuits is connected respectively to decoding, pulsewidth is differentiated and 2 signal input parts of output signal latch cicuit.
Described decoding, pulsewidth are differentiated and the output signal latch cicuit comprises: a Block decoder integrated circuit, three monostable flipflop circuit and three d type flip flops and power on and put 1 circuit; Wherein, power on and put the series circuit that 1 circuit is made up of positive source, electrochemical capacitor, resistance and power cathode, and draw 1 end of putting that lead is connected to three d type flip flops from the negative pole of electrochemical capacitor and the interface of resistance; Each piece monostable flipflop circuit all is made up of a monostable flipflop and its timing resistor and timing capacitor, and a monostable flipflop circuit and a d type flip flop constitute one tunnel pulsewidth and differentiate and the output signal latch cicuit; Two input signal ends of decoder constitute 2 signal input parts of this circuit, trailing edge triggering signal input in three monostable flipflops that are connected respectively in discriminating of one tunnel pulsewidth and the output signal latch cicuit in its decoding output and the D input in the d type flip flop; The reversed-phase output of the monostable flipflop in each road pulsewidth discriminating and the output signal latch cicuit
Be connected to the clock signal input terminal of corresponding D trigger, and the reversed-phase output of d type flip flop
Output signal as this circuit; The reset terminal of the rising edge triggering signal input of the Enable Pin of decoder and earth terminal thereof, three monostable circuits and earth terminal thereof, three d type flip flops all is connected to power cathode, and the reset terminal of their power end and three monostable flipflops all is connected to positive source.
The utility model has constituted the interface between computer and the home electronic appliance, under the management of computer software, can cooperate the work of multiclass commercial sensor, comprise: output signal be switching mode ,+3V～+ the level type of 15V or the transducer of pulse signal type or resistance saltus step type, help detecting and automatic domestic electronic or the household electrical appliance that are connected that move, and the combination of transducer and household electrical appliances is adapted to multiple occasion; Its advantage is: adopted decoding, pulsewidth to differentiate and the output signal latch cicuit, make computer pass through two serial port output interconnections and can control 3 groups of electronic switching circuits respectively, simultaneously, the utility model also can cooperate transducer directly to control the operation of electronic apparatus, perhaps be used as general supply socket independently and use, safe, convenient.
Description of drawings
Below in conjunction with accompanying drawing, further specify the utility model.
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the schematic diagram of decoding, pulsewidth discriminating and output signal latch cicuit.
Fig. 3 is the schematic diagram of one group of electronic switching circuit.
Among the figure, 1. decoding, pulsewidth are differentiated and the output signal latch cicuit 2.-4. electronic switching circuit, 5. voltage-stabilized power supply circuit, 51. anti-lightning strike and surge circuit, the 6.USB interface, 7.USB changes the serial port circuit, 8.RS232C interface, 11. decoder, 12.-14. monostable flipflop circuit, 15.-17.D trigger, 31. the single-pole double throw direct current electromagnetic relay, 32. solid-state relay SSR.
Embodiment
As shown in Figure 1, the utility model comprises following major part: use Rs1,4 transducers that Rs2, Rs3, Rs4 represent; Decoding, pulsewidth are differentiated and output signal latch cicuit (1) and RS232C → CMOS interface protective circuit thereof: working station indicator LED1 and voltage stabilizing didoe DZ1, working station indicator LED2 and voltage stabilizing didoe DZ2 are connected in series to the circuit of power cathode; Electronic switching circuit (2), (3) and (4); The common power socket circuit is changeed in the management of 2 sets of computer: R5, S1, D1, R7 and R6, S2, D2, R8; + 9V voltage-stabilized power supply circuit (5) and anti-lightning strike and surge circuit (51); USB interface (6), USB change serial port circuit (7) and RS232C interface (8).
The transmission range of the RS232C interface of computer can reach 15 meters, and transmission rate can reach 19200baud, the corresponding level+3V of logical zero～+ 15V, the corresponding level-3V of logical one～(15) V.Therefore, as shown in Figure 1, adopt pull-up resistor R1, R2, R3, R4 and Rs1, Rs2, Rs3, the mode of Rs4 ground connection has constituted the interface circuit of transducer, adapt to multiclass sensor work, comprising: output signal be switching mode ,+3V～+ the level type of 15V or the transducer of pulse signal type or resistance saltus step type.
The signal that comes the detecting sensor sense events to be exported by the event attribute of serial communication control MSComm32.OCX:
1 ComEvSend: the number of characters in the transmission register also lacks than Sthreshold;
2 ComEvReceive: receive Sthreshold character, this incident continues to produce up to removing from receiving register with the Input attribute;
The state of 3 ComEvCTS:Clear_to_Send lines changes;
The state of 4 ComEvDSR:Data_Set_Ready lines changes to 0 from 1;
The state of 5 ComEvCD:Carrier_Detect lines changes;
6 ComEvRing: detect bell signal, but, the attribute MSComm32.CTSholding/.DSRholding/.DCDholding that does not possess the serial communication control can't inquire about the height situation that detects its level, and some UART (asynchronous reception-transmitter) may not support this incident;
7 ComEvEOF: receive the end of data (ASCII is 26) character.
Generally speaking, the working power of family expenses transducer is＜DC power supply of 15V, be operated in indoor, so Fig. 1 does not consider at transducer Rs1, Rs2, Rs3, arrangement photoelectricity coupling circuit is made electrical isolation between Rs4 and the RS232C interface, has reduced cost.
But, in order to take precautions against the thunderbolt or the destruction of surge current, be parallel with anti-lightning strike and surge circuit (51) at the input of civil power; Wherein, the method for the pressure sensitive voltage of estimation piezo-resistance is: V1mA=1.5V
P=1.5 * 220V=476V, V1mA=2.2VAC=2.2 * 220V=484V, so the puncture voltage of piezo-resistance is selected 470-480V, its discharge capacity selects 2-20KA; The specification of fuse is looked the rated operational current sum of the solid-state relay SSR (32) (referring to Fig. 3) that is adopted in electronic switching circuit (2)-(4) and is determined.
For example the input control voltage of the JGX-10F solid-state relay of Beijing section energising electric relay head factory production is DC3.2～14V, the representative value of input current is 5～20mA (VDC=5V), and its rated output voltage is AC25～250V, and output-current rating is 10A, is enough to drive 1 air-conditioning.
Among Fig. 1, the interconnection RTS that shakes hands of RS232C interface, DTR is the output signal of computer, its pin position voltage is by the attribute DTREnable among the serial communication control MSComm32.OCX, RTSEnable controls respectively, and the data mode of this attribute is Boolean (Boolean), represents high potential with True, represent electronegative potential with False, be suitable for controlling the operation of electronic apparatus.LED 1, LED2 are used to indicate RTS, and the operating state of DTR also is used for the serial port and electronic switching circuit (2)-(4) of isolation computer, avoid the contingent big feedback pulse of external circuit to damage computer.By RTS, the voltage that DTR pin position is sent after tested between ± 9V～± 12V between, the electric current of being sent does not have current-limiting resistance can not burn light-emitting diode between 4mA～20mA yet.The forward voltage drop of light-emitting diode is about 1.3V～2.4V, by RTS, if the voltage that DTR pin position is sent through also be higher than after LED2 or the LED1 Vz～+ 5V, then carry out voltage stabilizing, the operate as normal of the cmos circuit that connects after the assurance by voltage stabilizing didoe DZ2 or DZ1.
Decoder (11) in decoding shown in Figure 1, pulsewidth discriminating and the output signal latch cicuit (1) can adopt 2-4 decoder 74HC139 or 3-8 decoder 74HC138.RTS, the binary combination of DTR forms one of four states, its normality 00 is set for idle, and remaining three kinds of state 01,10,11 is the instruction of operation electrical equipment to be used to control the operation of No. three electrical equipment.But, need two instructions to specify the attribute DTREnable the serial communication control MSComm32.OCX respectively from 00 → 11, RTSEnable, promptly need the intermediateness through one of 01 or 10, the time of implementation of two instructions of experience is though required time is in the microsecond level, but can have influence on really one of other two-way electrical equipment electronics or the work of electrical equipment, therefore, strictly speaking, should directly not be used for the output of decoder the operation of control apparatus.In addition, the electronic switching circuit that connects later (2)-(4) should start or stop work independently.For this reason, be that pulsewidth is differentiated and the output signal latch cicuit for decoder (11) has designed supporting three paths of independent " monostable flipflop+d type flip flop " circuit: each road can both finish the distinguishing signal pulse duration, latchs the instruction of operation electrical equipment, change the task of moving the electrical equipment instruction.Concrete decoding, pulsewidth discriminating and output signal latch cicuit (1) are as shown in Figure 2.
Among Fig. 2, C0, R0 series circuit when powering on, introduce a high level make three d type flip flops (15), (16) and (17) to put 1 end effective, its Q1Q2Q3=111, decoding, pulsewidth are differentiated and the output signal of output signal latch cicuit (1)
After several seconds, C0, the high level that the R0 series circuit is introduced when powering on has become low level, three d type flip flops (15), (16) and (17) to put 1 end invalid.The initial condition of serial port is: DTR=LOW, and RTS=LOW, the output normality of decoder (11) is
Suppose needs
We divided for four steps realized this goal.
The first step, serial ports of computers line be output DTR=HIGH earlier, after decoder (11) decoding, has
On last saltus step pulse has taken place, we are indifferent to it, and
On the following saltus step pulse that occurs has taken place not wish, effective for the triggering signal input TR-of monostable flipflop (12), monostable flipflop (12) begins to produce a monostable pulse, its reversed-phase output
By high saltus step is low level, but invalid to the clock pulse signal input CLK of d type flip flop (15).But, through the delay time constant τ of a monostable flipflop (12)=(after the Rx * Cx)/2, its reversed-phase output
Can be by low saltus step be high level, on this saltus step pulse effective to the clock pulse signal input CLK of d type flip flop (15), at this moment, have:
(a) if
Remain unchanged, then the output of d type flip flop (15) becomes always
Started the electronic switching circuit (2) that connects later;
(b) if
Be returned to invalid high level state:
Then the output of d type flip flop (15) becomes
Stopped the work of the electronic switching circuit (2) that connects later.
Obviously, should select one of above-mentioned two kinds of situations according to the electronic switching circuit that connects later (2) current working state, in fact, also can accomplish this selection: the time span of serial ports of computers line output DTR=HIGH and the delay time constant τ=(Rx * Cx)/2 be complementary of monostable flipflop (12).
In second step, the serial ports of computers line is then exported RTS=HIGH, after decoder (11) decoding, has
On last saltus step pulse has taken place, but it is invalid to the clock pulse signal input of the monostable flipflop (12) of back, and
On time saltus step pulse has taken place, the state that occurs has appearred wishing, this time saltus step pulse makes monostable flipflop (14) move its reversed-phase output
By the hypermutation low level, but it is invalid to the clock pulse signal input of the d type flip flop (17) that connects thereafter.Through the delay time constant τ of a monostable flipflop (14)=(after the Rx * Cx)/2, its reversed-phase output
Can be by low saltus step be high level, on this saltus step pulse effective to the clock pulse signal input CLK of d type flip flop (17), at this moment, have:
(c) if
Remain unchanged, then the output of d type flip flop (17) becomes always
Start the electronic switching circuit (4) that connects later;
(d) if
Be returned to invalid high level state:
Then the output of d type flip flop (17) becomes
The work of the electronic switching circuit that stops to connect later (4).
Obviously, in order to start electronic switching circuit (4) work that connects later, should make the time span of serial ports of computers line output RTS=HIGH be longer than the delay time constant τ of monostable flipflop (14)=(Rx * Cx)/2.
In the 3rd step, serial ports of computers line output RTS=LOW after decoder (11) decoding, has
On last saltus step pulse has taken place, invalid to its monostable flipflop that connects later (14), and
On the following saltus step pulse that should not occur has taken place, effective for the triggering signal input TR-of monostable flipflop (12), it is identical that this situation and the first step occur.
In the 4th step, serial ports of computers line output DTR=LOW after decoder (11) decoding, has
Returned to previous status, at this moment,
On last saltus step pulse has taken place, but it is invalid to the monostable flipflop (12) that connects later,
Time saltus step pulse has taken place, and need not consider.
In a word, in order to set exactly/Q3=1, the register of the operating state of memory No. three electronic switches (2)-(4) need be set.
For needs
Or
Promptly start or close electronic switching circuit (2) or (3), both of these case is simpler, has been included in the above-mentioned analytic process in fact.Start electronic switching circuit correspondence (a) or (c) situation: the time outline that the output output accordingly result of corresponding decoder is set is longer than that the delay time constant τ of monostable flipflop=(Rx * Cx)/2, and close electronic switching circuit correspondence (b) or (d) situation: the time that the output output accordingly result of corresponding decoder is set is smaller than the delay time constant τ of monostable flipflop=(Rx * Cx)/2.
USB that Fig. 1 dashes changes serial port circuit (7) and can adopt ooze " USB changes serial port chip; it is infrared that USB changes IrDA; USB changes LPT " chip CH340 of permanent Electronics Co., Ltd. of Nanjing to finish, and prepares against some notebook that does not dispose RS232C interface use.
In the use, an end of the present utility model connects the USB or the RS232C interface of computer by cable, the other end inserts commercial power socket by power line, as the power patch panel of family use at ordinary times electrical equipment is inserted corresponding socket, and 4 pairs of transducers then connect by binding post.To the unfamiliar people of transducer, can be temporarily no matter it, the program of operation computer just can managing electronic or the operation of electrical equipment.
If there is not computed serial port, or do not connect computer, can the utility model be used as common supply socket use by the switch in 2 groups " the common power socket circuit is changeed in computer management "; Perhaps, 1 pairs of posts that draw at the two ends of switch from this circuit inserts the transducer of certain Switch-Output Type, or inserts the transducer of level output type over the ground, can constitute domestic electronic or appliance wiring seat that transducer is directly controlled operation.
Claims (8)
1. the home electronic appliance automation junction block of serial port interconnection decoding type management, it is characterized in that, comprising: 9 pin RS232C interfaces, USB interface, USB change serial port circuit, 4 pairs of sensor interface terminals, decoding, pulsewidth differentiates and common power socket circuit and supply main and plug thereof are changeed in output signal latch cicuit, 3 groups of electronic switching circuits, voltage-stabilized power supply circuit, anti-lightning strike and surge circuit, the management of 2 sets of computer; Wherein, USB interface is connected to the corresponding signal input part that USB changes the serial port circuit, the corresponding port line parallel of the latter's signal output part and RS232C interface; The first pin CD of RS232C interface, the 6th pin DSR, the 8th pin CTS are connected a pull-up resistor respectively to positive source with nine kinds of needles RI, and this four pin and power cathode have constituted 4 pairs of sensor interface terminals respectively; The 4th pin DTR of RS232C interface, the 7th pin RTS are connected to 2 signal input parts of decoding, pulsewidth discriminating and output signal latch cicuit separately by a light-emitting diode, these 2 signal input parts also connect the negative pole of a pull down resistor and a voltage stabilizing didoe respectively, and the other end of this pull down resistor and the positive pole of voltage stabilizing didoe all are connected to power cathode; Three signal input end that are connected respectively to 3 groups of electronic switching circuits in the output of decoding, pulsewidth discriminating and output signal latch cicuit; The ac input end of voltage-stabilized power supply circuit is received civil power with anti-lightning strike in parallel with the surge circuit by supply main and plug thereof, and the negative pole of voltage-stabilized power supply circuit links to each other with the 5th pin GND of RS232C interface.
2. the home electronic appliance automation junction block of serial port interconnection decoding type management according to claim 1, it is characterized in that, described voltage-stabilized power supply circuit is made up of power transformer, diode bridge rectifier circuit, capacitor filter and circuit of three-terminal voltage-stabilizing integrated, and two outputs of circuit of three-terminal voltage-stabilizing integrated have constituted the positive source and the power cathode of this device respectively.
3. the home electronic appliance automation junction block of serial port interconnection decoding type management according to claim 1 is characterized in that, described anti-lightning strike the polyphone by a fuse and a piezo-resistance with the surge circuit formed.
4. the home electronic appliance automation junction block of serial port interconnection decoding type management according to claim 1, it is characterized in that, the structure of described 3 groups of electronic switching circuits is identical, comprises separately: No. 1 alternating current electronic switching circuit and 1 road light current electronic switching circuit.
5. the home electronic appliance automation junction block of serial port interconnection decoding type management according to claim 1, it is characterized in that, the structure that the common power socket circuit is changeed in described 2 sets of computer management is identical, comprises 1 current limliting isolation resistance, 1 switch and an isolation diode separately; Wherein, an end of current limliting isolation resistance connects an end of switch, and its other end is connected to positive source, and the other end of switch connects the positive pole of diode, and draws 1 pairs of posts from the two ends of switch, the sensor terminals when having constituted independent the use; The negative pole of the diode in these two series circuits is connected respectively to decoding, pulsewidth is differentiated and 2 signal input parts of output signal latch cicuit.
6. the home electronic appliance automation junction block of serial port interconnection decoding type management according to claim 1, it is characterized in that described decoding, pulsewidth are differentiated and the output signal latch cicuit comprises: a Block decoder integrated circuit, three monostable flipflop circuit and three d type flip flops and power on and put 1 circuit; Wherein, power on and put the series circuit that 1 circuit is made up of positive source, electrochemical capacitor, resistance and power cathode, and draw 1 end of putting that lead is connected to three d type flip flops from the negative pole of electrochemical capacitor and the interface of resistance; Each piece monostable flipflop circuit all is made up of a monostable flipflop and its timing resistor and timing capacitor, and a monostable flipflop circuit and a d type flip flop constitute one tunnel pulsewidth and differentiate and the output signal latch cicuit; Two input signal ends of decoder constitute 2 signal input parts of this circuit, trailing edge triggering signal input in three monostable flipflops that are connected respectively in discriminating of one tunnel pulsewidth and the output signal latch cicuit in its decoding output and the D input in the d type flip flop; The reversed-phase output of the monostable flipflop in each road pulsewidth discriminating and the output signal latch cicuit
Be connected to the clock signal input terminal of corresponding D trigger, and the reversed-phase output of d type flip flop
Output signal as this circuit; The reset terminal of the rising edge triggering signal input of the Enable Pin of decoder and earth terminal thereof, three monostable circuits and earth terminal thereof, three d type flip flops all is connected to power cathode, and the reset terminal of their power end and three monostable flipflops all is connected to positive source.
7. the home electronic appliance automation junction block of serial port interconnection decoding type management according to claim 4, it is characterized in that described alternating current electronic switching circuit comprises: 1 NPN triode, 1 PNP triode, 1 base resistance, 1 base biasing resistor, 1 collector resistance, 1 current limliting collector resistance and a solid-state relay; Wherein, the base stage of one termination NPN triode of base resistance, the other end is as the signal input end of this electronic switching circuit, base biasing resistor is connected in parallel on the emitter junction of PNP triode, the emitter of this PNP triode connects positive source, collector resistance of its base stage series connection is connected to the collector electrode of NPN triode, the emitter of NPN triode is connected to power cathode, current limliting of the collector electrode of PNP triode series connection is connected to the positive pole in the signal input end of solid-state relay with collector resistance, the negative pole in the signal input end of solid-state relay is connected to power cathode; Two outputs of solid-state relay constitute the output of this alternating current electronic switching circuit.
8. the home electronic appliance automation junction block of serial port interconnection decoding type management according to claim 4, it is characterized in that described light current electronic switching circuit comprises: triode and base resistance, a diode, a light-emitting diode and a direct current relay; Wherein, the base stage of one termination triode of base resistance, the other end is as the signal input end of this electronic switching circuit, the emitter of triode is connected to power cathode, its collector electrode is connected to the negative pole of light-emitting diode, the positive pole of light-emitting diode is connected respectively to an end of the coil of the positive pole of diode and direct current relay, and the other end of the negative pole of diode and the coil of direct current relay all is connected to positive source; Six terminals of two pairs of single-pole double-throw switch (SPDT)s of direct current relay have constituted the output of this light current electronic switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205317528U CN201928254U (en) | 2010-09-16 | 2010-09-16 | Automatic wire holder for serial-port link-line decoding-type managed household electronic and electric appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205317528U CN201928254U (en) | 2010-09-16 | 2010-09-16 | Automatic wire holder for serial-port link-line decoding-type managed household electronic and electric appliance |
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| Publication Number | Publication Date |
|---|---|
| CN201928254U true CN201928254U (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205317528U Expired - Fee Related CN201928254U (en) | 2010-09-16 | 2010-09-16 | Automatic wire holder for serial-port link-line decoding-type managed household electronic and electric appliance |
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| CN (1) | CN201928254U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176590A (en) * | 2011-03-01 | 2011-09-07 | 成都医学院 | Wire holder for automatically managing household electric appliances by computer |
-
2010
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176590A (en) * | 2011-03-01 | 2011-09-07 | 成都医学院 | Wire holder for automatically managing household electric appliances by computer |
| CN102176590B (en) * | 2011-03-01 | 2013-10-30 | 成都医学院 | Wire holder for automatically managing household electric appliances by computer |
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Granted publication date: 20110810 Termination date: 20120916 |